for everyone here is, and it was true for you, robin, you can do all the right things, and you are dealt cards that sometimes aren't the ones that you expected. >> 25,000 lives saved by getting tested, age 50. >> reporter: incredible. >> but it had already begun to develop. should he have been tested before the age of 50? >> reporter: 50 is the right age for most people. if you have a family history of colon cancer, or certain medical conditions like inflammatory bowel disease, you should be tested sooner. one of the incredible things about this type of cancer, it grows so slowly that detecting it early is a cure. >> you're good with 50? >> reporter: i'm great with 50. >> have you had yours? >> reporter: i had mine last month when i was still 50. >> and the experience, tell everyone out there. >> reporter: it wasn't that bad. you hear stories, but it really wasn't so bad and i slept so much better having had it done. >> that's right. and i want to weigh in and say exactly the same thing. in fact, join the community out there, everybody, of people who laugh about the experience. it's really going to save lives if you do. thank you, rich. >> and on abcnews.com/worldnews, rich will have more advice on all of this.